<template>
  <div>
    <!-- 用户导入对话框 -->
    <el-dialog class="dia-style" title="导入" :visible.sync="upload.open" width="400px" append-to-body>
      <el-upload
        ref="upload"
        :limit="1"
        accept=".xlsx, .xls"
        :headers="upload.headers"
        :action="upload.url + '?updateSupport=' + upload.updateSupport"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
        :auto-upload="false"
        drag>
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
        <div class="el-upload__tip text-center" slot="tip">
          <div class="el-upload__tip" slot="tip">
            <el-checkbox v-model="upload.updateSupport" />
            是否更新已经存在的用户数据
          </div>
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link
            type="primary"
            :underline="false"
            style="font-size: 12px; vertical-align: baseline"
            @click="importTemplate"
            >下载模板</el-link
          >
        </div>
      </el-upload>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">保 存</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { TokenKey, getToken } from '@/utils/auth'
export default {
  data() {
    return {
      open: false,
      // 用户导入参数
      upload: {
        // 是否显示弹出层（用户导入）
        open: false,
        // 弹出层标题（用户导入）
        title: '',
        // 是否禁用上传
        isUploading: false,
        // 是否更新已经存在的用户数据
        updateSupport: false,
        // 设置上传的请求头部
        headers: { [TokenKey]: getToken() },
        // 上传的地址
        url: window.baseUrl + '/system/account/importData',
      },
    }
  },
  methods: {
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false
      this.upload.isUploading = false
      this.$refs.upload.clearFiles()
      let resultMsg = ''
      if (response.code == 200) {
        resultMsg = response.data
        this.$emit('refresh')
      } else {
        resultMsg = response.msg
      }
      this.$alert(
        "<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" + resultMsg + '</div>',
        '导入结果',
        { dangerouslyUseHTMLString: true }
      )
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit()
    },
    /** 下载模板操作 */
    importTemplate() {
      this.download(window.baseUrl+'system/user/importTemplate', {}, `user_template_${new Date().getTime()}.xlsx`)
    },
  },
}
</script>

<style lang="scss" scoped></style>
